feat(auth): enterprise authentication and user management

frontend/athena/app/api/users/[id]/route.ts

@@ -0,0 +1,87 @@
+import { NextRequest } from "next/server";
+
+import {
+  clearAuthCookie,
+  getAccessToken,
+  getHermesUrl,
+  hermesJsonResponse,
+  unauthorizedResponse,
+  upstreamConfigurationErrorResponse,
+  upstreamUnavailableResponse,
+} from "@/lib/server/hermes";
+import { assertSameOrigin } from "@/lib/server/request-guards";
+
+type Params = {
+  params: Promise<{
+    id: string;
+  }>;
+};
+
+async function proxyUserRequest(request: NextRequest, { params }: Params) {
+  const token = await getAccessToken();
+
+  if (!token) {
+    return unauthorizedResponse();
+  }
+
+  const hermesUrl = getHermesUrl();
+
+  if (!hermesUrl) {
+    return upstreamConfigurationErrorResponse();
+  }
+
+  const { id } = await params;
+  const action = request.nextUrl.searchParams.get("action");
+  const path = action === "password" ? `/users/${id}/password` : `/users/${id}`;
+
+  let hermesResponse: Response;
+
+  try {
+    hermesResponse = await fetch(`${hermesUrl}${path}`, {
+      method: request.method,
+      headers: {
+        Authorization: `Bearer ${token}`,
+        Accept: "application/json",
+        "Content-Type": "application/json",
+      },
+      body: request.method === "GET" || request.method === "DELETE"
+        ? undefined
+        : await request.text(),
+      cache: "no-store",
+    });
+  } catch {
+    return upstreamUnavailableResponse();
+  }
+
+  if (hermesResponse.status === 401) {
+    const response = await hermesJsonResponse(hermesResponse);
+    clearAuthCookie(response);
+    return response;
+  }
+
+  return hermesJsonResponse(hermesResponse);
+}
+
+export async function GET(request: NextRequest, context: Params) {
+  return proxyUserRequest(request, context);
+}
+
+export async function PUT(request: NextRequest, context: Params) {
+  const originError = assertSameOrigin(request);
+
+  if (originError) {
+    return originError;
+  }
+
+  return proxyUserRequest(request, context);
+}
+
+export async function DELETE(request: NextRequest, context: Params) {
+  const originError = assertSameOrigin(request);
+
+  if (originError) {
+    return originError;
+  }
+
+  return proxyUserRequest(request, context);
+}